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6.8

Firefox and ESR 38 crash from crafted Java applet

CVE-2015-7196 · published 11 years ago
Summary

Versions of Firefox older than 42 and the Enterprise Support Release 38 older than 38.4 can stop working if a malicious Java applet runs in the browser. The problem can make the browser close unexpectedly and, in rare cases, let an attacker run code on the computer. Updating Firefox to the latest version or turning off the Java plugin removes the risk.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
mozilla firefox <= 41.0.2
38.0
38.0.1
38.0.5
38.1.0
38.1.1
38.2.0
38.2.1
38.3.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Original advisory text
Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4, when a Java plugin is enabled, allow remote attackers to cause a denial of service (incorrect garbage collection and application crash)...
Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4, when a Java plugin is enabled, allow remote attackers to cause a denial of service (incorrect garbage collection and application crash) or possibly execute arbitrary code via a crafted Java applet that deallocates an in-use JavaScript wrapper.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
6.8 Medium
Exploitation
4% chance of attack within 30 days
Type
CWE-17DEPRECATED: Code
Timeline
Published5 Nov 2015
Updated22 Oct 2026
First seen29 Sep 2026
Sources
CVE-2015-7196 · NVD
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